linux-kernel - Re: [PATCH] mm/memcontrol.c: make mem_cgroup_read_stat() read all interested stat item in one go

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Message-ID: <CAHz2CGXiRnBuza6ByvuDZpuxB4sP3wDBZ2OiLTACEX7ZMAuvXw@mail.gmail.com>
Date:	Wed, 16 Apr 2014 23:22:51 +0800
From:	Zhan Jianyu <nasa4836@...il.com>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Johannes Weiner <hannes@...xchg.org>,
	Balbir Singh <bsingharora@...il.com>,
	kamezawa.hiroyu@...fujitsu.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	cgroups@...r.kernel.org, "linux-mm@...ck.org" <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/memcontrol.c: make mem_cgroup_read_stat() read all
 interested stat item in one go

On Wed, Apr 16, 2014 at 5:22 PM, Michal Hocko <mhocko@...e.cz> wrote:
> cannot say I like the new code much more than the previous one and
> I've never seen the old one being a bottleneck. So I am not entirely
> fond of optimization without a good reason. (Hint, if you are optimizing
> something always show us numbers which support the optimization)

Hmm, actually I now have no workload to support this optimizaton, I will
refine patch if I have one.  Thanks for all your comments.

Thanks,
Jianyu Zhan
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